Keuffel & Esser Alidade
- Title
- Keuffel & Esser Alidade
- Collection
- Caltech Images Collection
- Series
- Scientific Instrument Photographs
- Identifier
- ST-GE-11
- Extents
- 1 photographs
- Abstract
- Keuffel & Esser Alidade, model #130567. Used by Kerry Sieh in his seismological research in Southern California